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2 cards from this section. Quick, good the night before a test.
Define quantitative measurement.
What do you typically need to report a measurement?
What does SI stand for?
Think about global standardization in measurements.
What does SI stand for?
It's related to global measurements.
Is precision related to how close measurements are to the true value?
Think of a dartboard analogy—hitting the same spot doesn't mean it's the bullseye!
If you measure the length of a table to be 150 cm over several trials and get values of 149.8 cm, 150.2 cm, and 150.0 cm, how would you describe the precision and accuracy of your measurements?
Calculate the average to check against the true length.
You have an analytical balance that reads 5.00 g when weighing 5.10 g substance. Can the balance still be considered accurate? Explain.
Think about how discrepancies affect trust in instruments.
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